Internal-pressure vulcanizing apparatus



i. R. GAMWIETER. INTERIJL PRESSURE VULCANIZSNG APPARATUS.

APPLICATEON FILED FEE, 3, i922- m @en METER,

n iig ai;- mid. Siate new and Zing' Apeiiewiiig iS e sgeciii- Catia-ii.

This .iivfenizimi 'feisies i iioiiev rubber xii m particuier tubes. @me fie Comieetien prespifmeld fiamme ar i simi i uppei' pieten lie upper Section of meid, mi@ .rubber E17 is ii bieckiize 5finiti *boiiei fio iiiie inne? meid Secu'en ami 181i keine' 'Wnicii is nig 'with pipe 19 fsbz'uay 3,3, w. Serial No. 536,078.

egsiins the outer Weii of e WnWaiciiy-iepei'ed, apertured plug 2l, the apeiiue @T wiiie'n, 2, communicates with the lower region of the socket and with a iioiizontai pipe Q3 non-rotatably mounted in the upper f Said ping mici eiiiending into the iiieiioi o the inner ube 16 wiihinihe mold cavity, passing through the waive-stem haie in the Weil of the tube.

Exam the upper poition of the plug 2l to 'ne Wadi of @he mold Cavity ihe pipe 23 is, sumeuncied bgg a tigiit-tting coiim 24, ufiii'cii may be integri with the plug 2l oi otherwise Secuieci against turning 0D 'he pipef, and which ferme/fi Wih :L c01f1- cave end suface 25 constituting, ebenda the pipe 237 a pmt of the wail 0f the .moiciig cavity. The 'end of the pipe exteiifiiig imm the opposite side of the ping' 21 is dosed by a plug 26 md lis pimf'ided *with a bandi@ 2T. The lower meid-section 14C and the iioe'i 17 are gieeved aceemmodme the coizii and the pipe 23, as Wiii be clearly seen by reference to Fig. 2, and. the upper :mold section 15 and a. block Z8 seeboited to the inneiv periphery theieof opposite the. block 17 are iikewise giooved and adapted to iii cieseiy over said 'collar alici pipe.

'The eind portion, 29, of the pipe 23 lying; wiiiin die mold cavity is bent so uiia iis exiemiija lies Subsi'zmtiaiiy in a tanff'entiai p0- sitinn the eenter of said eavity, and said eli member 30 into 'which is serewed au innewuiie *waive-stem o1 casing 31, the latter iiiiis being adzipied toreceive sezim *mm die pipe emi discharge it iungemiaiiy inte The plug 2i, pipe 25, Geiler 24 and handle 27', heise shown, cnstiuie e steam-een# dimi-ieg stiuctuie aapted Le be detechaisly seais@ iii @ne o ae mold sec'fbions and to he *E* tiiesecem Wiih the Wok when the sections in' communication with said fluid passage und with the mold cavity, said stiucture including an angular pipo adapted to extend into the mold cavity with its end portion lying in a tangential position.3 said ond portion being adapted to suppolw*J a fitting Within the article during vulcanizution.

19. Vulcanizing apparatus for hollow, :xnnulai' articles comprising an annular mold section having u fluid-coupling eement in u lixed position on the outer poilphex'y of Said section, u iuid couplingolfe'ment having u fixed posiion with respect to said section., und fluid-conducting means lying Wholly within tho verhaal dimension of Suid mold mamas section and connacting said @lid-coupling elements.

20. Vulcunizing apparatus for hollow articles comprising coacting mold sections, one of Suid sections being formed with a recess on its partingace, und a Huid-conducting structure adapted to lie in said recess between said mold sections, said structure including u pipo adopted to extend through a wall of u 'hollow aiole contained in the mold und a member having a molding surfalce surrounding said pipe.

. In witness whereof I have hereunto set my hand this 11th dav of February, 1922.

OHN 1i. GAMMETER. 

